Created
November 11, 2015 09:25
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#import <Foundation/Foundation.h> | |
int main(int argc, const char * argv[]) { | |
@autoreleasepool { | |
// insert code here... | |
int numberOfIntegers = 0; | |
scanf("%d", &numberOfIntegers); | |
int difference = 0; | |
scanf("%d", &difference); | |
NSMutableSet *set = [NSMutableSet setWithCapacity:10000]; | |
int total = 0; | |
for (int i = 0; i < numberOfIntegers; i++) { | |
long number = 0; | |
scanf("%ld", &number); | |
long remainder = 0; | |
if (number > difference) { | |
remainder = number - difference; | |
if ([set containsObject:[NSNumber numberWithLong:remainder]]){ | |
total++; | |
} | |
} | |
remainder = difference + number; | |
if ([set containsObject:[NSNumber numberWithLong:remainder]]){ | |
total++; | |
} | |
[set addObject:[NSNumber numberWithLong:number]]; | |
} | |
printf("%d",total); | |
} | |
return 0; | |
} |
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